1 /* $NetBSD: dump.c,v 1.6 2002/07/10 21:11:43 itojun Exp $ */ 2 /* $KAME: dump.c,v 1.28 2002/05/29 14:25:01 itojun Exp $ */ 3 4 /* 5 * Copyright (C) 2000 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 #include <sys/types.h> 33 #include <sys/socket.h> 34 #include <sys/queue.h> 35 36 #include <net/if.h> 37 #include <net/if_dl.h> 38 39 #include <netinet/in.h> 40 41 /* XXX: the following two are non-standard include files */ 42 #include <netinet6/in6_var.h> 43 #include <netinet6/nd6.h> 44 45 #include <arpa/inet.h> 46 47 #include <time.h> 48 #include <stdio.h> 49 #include <stdarg.h> 50 #include <syslog.h> 51 #include <string.h> 52 #include <errno.h> 53 #include <netdb.h> 54 55 #include "rtadvd.h" 56 #include "timer.h" 57 #include "if.h" 58 #include "dump.h" 59 60 static FILE *fp; 61 62 extern struct rainfo *ralist; 63 64 static char *ether_str __P((struct sockaddr_dl *)); 65 static void if_dump __P((void)); 66 67 static char *rtpref_str[] = { 68 "medium", /* 00 */ 69 "high", /* 01 */ 70 "rsv", /* 10 */ 71 "low" /* 11 */ 72 }; 73 74 static char * 75 ether_str(sdl) 76 struct sockaddr_dl *sdl; 77 { 78 static char hbuf[NI_MAXHOST]; 79 80 if (sdl->sdl_alen) { 81 if (getnameinfo((struct sockaddr *)sdl, sdl->sdl_len, 82 hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0) 83 snprintf(hbuf, sizeof(hbuf), "<invalid>"); 84 } else 85 snprintf(hbuf, sizeof(hbuf), "NONE"); 86 87 return(hbuf); 88 } 89 90 static void 91 if_dump() 92 { 93 struct rainfo *rai; 94 struct prefix *pfx; 95 char prefixbuf[INET6_ADDRSTRLEN]; 96 int first; 97 struct timeval now; 98 99 gettimeofday(&now, NULL); /* XXX: unused in most cases */ 100 for (rai = ralist; rai; rai = rai->next) { 101 fprintf(fp, "%s:\n", rai->ifname); 102 103 fprintf(fp, " Status: %s\n", 104 (iflist[rai->ifindex]->ifm_flags & IFF_UP) ? "UP" : 105 "DOWN"); 106 107 /* control information */ 108 if (rai->lastsent.tv_sec) { 109 /* note that ctime() appends CR by itself */ 110 fprintf(fp, " Last RA sent: %s", 111 ctime((time_t *)&rai->lastsent.tv_sec)); 112 } 113 if (rai->timer) { 114 fprintf(fp, " Next RA will be sent: %s", 115 ctime((time_t *)&rai->timer->tm.tv_sec)); 116 } 117 else 118 fprintf(fp, " RA timer is stopped"); 119 fprintf(fp, " waits: %d, initcount: %d\n", 120 rai->waiting, rai->initcounter); 121 122 /* statistics */ 123 fprintf(fp, " statistics: RA(out/in/inconsistent): " 124 "%llu/%llu/%llu, ", 125 (unsigned long long)rai->raoutput, 126 (unsigned long long)rai->rainput, 127 (unsigned long long)rai->rainconsistent); 128 fprintf(fp, "RS(input): %llu\n", 129 (unsigned long long)rai->rsinput); 130 131 /* interface information */ 132 if (rai->advlinkopt) 133 fprintf(fp, " Link-layer address: %s\n", 134 ether_str(rai->sdl)); 135 fprintf(fp, " MTU: %d\n", rai->phymtu); 136 137 /* Router configuration variables */ 138 fprintf(fp, " DefaultLifetime: %d, MaxAdvInterval: %d, " 139 "MinAdvInterval: %d\n", rai->lifetime, rai->maxinterval, 140 rai->mininterval); 141 fprintf(fp, " Flags: %s%s%s, ", 142 rai->managedflg ? "M" : "", rai->otherflg ? "O" : "", 143 ""); 144 fprintf(fp, "Preference: %s, ", 145 rtpref_str[(rai->rtpref >> 3) & 0xff]); 146 fprintf(fp, "MTU: %d\n", rai->linkmtu); 147 fprintf(fp, " ReachableTime: %d, RetransTimer: %d, " 148 "CurHopLimit: %d\n", rai->reachabletime, 149 rai->retranstimer, rai->hoplimit); 150 if (rai->clockskew) 151 fprintf(fp, " Clock skew: %ldsec\n", 152 rai->clockskew); 153 for (first = 1, pfx = rai->prefix.next; pfx != &rai->prefix; 154 pfx = pfx->next) { 155 if (first) { 156 fprintf(fp, " Prefixes:\n"); 157 first = 0; 158 } 159 fprintf(fp, " %s/%d(", 160 inet_ntop(AF_INET6, &pfx->prefix, prefixbuf, 161 sizeof(prefixbuf)), pfx->prefixlen); 162 switch (pfx->origin) { 163 case PREFIX_FROM_KERNEL: 164 fprintf(fp, "KERNEL, "); 165 break; 166 case PREFIX_FROM_CONFIG: 167 fprintf(fp, "CONFIG, "); 168 break; 169 case PREFIX_FROM_DYNAMIC: 170 fprintf(fp, "DYNAMIC, "); 171 break; 172 } 173 if (pfx->validlifetime == ND6_INFINITE_LIFETIME) 174 fprintf(fp, "vltime: infinity"); 175 else 176 fprintf(fp, "vltime: %ld", 177 (long)pfx->validlifetime); 178 if (pfx->vltimeexpire != 0) 179 fprintf(fp, "(decr,expire %ld), ", (long) 180 pfx->vltimeexpire > now.tv_sec ? 181 pfx->vltimeexpire - now.tv_sec : 0); 182 else 183 fprintf(fp, ", "); 184 if (pfx->preflifetime == ND6_INFINITE_LIFETIME) 185 fprintf(fp, "pltime: infinity"); 186 else 187 fprintf(fp, "pltime: %ld", 188 (long)pfx->preflifetime); 189 if (pfx->pltimeexpire != 0) 190 fprintf(fp, "(decr,expire %ld), ", (long) 191 pfx->pltimeexpire > now.tv_sec ? 192 pfx->pltimeexpire - now.tv_sec : 0); 193 else 194 fprintf(fp, ", "); 195 fprintf(fp, "flags: %s%s%s", 196 pfx->onlinkflg ? "L" : "", 197 pfx->autoconfflg ? "A" : "", 198 ""); 199 fprintf(fp, ")\n"); 200 } 201 } 202 } 203 204 void 205 rtadvd_dump_file(dumpfile) 206 char *dumpfile; 207 { 208 if ((fp = fopen(dumpfile, "w")) == NULL) { 209 syslog(LOG_WARNING, "<%s> open a dump file(%s)", 210 __func__, dumpfile); 211 return; 212 } 213 214 if_dump(); 215 216 fclose(fp); 217 } 218